82771430 has 16 divisors (see below), whose sum is σ = 170272800. Its totient is φ = 28378752.

The previous prime is 82771421. The next prime is 82771459. The reversal of 82771430 is 3417728.

It is a happy number.

It is a super-2 number, since 2×82771430² = 13702219248489800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591155 + ... + 591294.

It is an arithmetic number, because the mean of its divisors is an integer number (10642050).

Almost surely, 2^82771430 is an apocalyptic number.

82771430 is an abundant number, since it is smaller than the sum of its proper divisors (87501370).

82771430 is a wasteful number, since it uses less digits than its factorization.

82771430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182463.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 82771430 is about 9097.8805224074. The cubic root of 82771430 is about 435.8062819529.

The spelling of 82771430 in words is "eighty-two million, seven hundred seventy-one thousand, four hundred thirty".